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Cat5 and Power cable distribution

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by jeff.toates

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Does anyone know the "Rules" on how close you can run power distribution cables next to Cat5e? I am building a new Data Center and i have a span of about 5 feet between a server enclosure and 3 equipment racks and I need to run power and data along the same piece of ladder racking...

Thanks for the help in advance.

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by thechas

I do not know of any specific rules for exposed cable. The NEC does have rules for in wall, plenum and in conduit.

I assemble custom equipment. Wherever possible, I run power and signal lines on opposite sides of the chassis. You want to keep the 2 as far apart as possible.

On a practical basis, you get 90 percent of the signal isolation over the first 2 inches of space between the cables.

Chas

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